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C1960 Driver Brake Apply Circuit Fault

The OBD2 code C1960 indicates a fault in the driver brake apply circuit, which typically means there is an issue with the signal or communication related to the brake system's operation

Definition

The OBD2 code C1960 indicates a fault in the driver brake apply circuit, which typically means there is an issue with the signal or communication related to the brake system's operation

Common causes

  • Faulty brake pedal switch
  • Damaged wiring or connectors in the brake apply circuit
  • Malfunctioning brake control module
  • Short circuit in the brake apply circuit
  • Open circuit in the brake apply circuit
  • Faulty ABS module
  • Corroded or loose electrical connections

Common misdiagnoses

  • Faulty brake switch
  • Wiring issues or shorts in the brake circuit
  • Malfunctioning ABS module
  • Brake pedal position sensor failure
  • Faulty master cylinder
  • Issues with the vehicle's body control module (BCM)
  • Problems with the traction control system
  • Incorrectly installed or damaged brake components

Troubleshooting steps

  1. 1. Check for Additional Codes

    Use an OBD-II scanner to check for any other related trouble codes. This can provide more context and help identify if there are multiple issues

  2. 2. Inspect the Brake System

  3. 3. Brake Fluid Level

    Ensure that the brake fluid is at the correct level. Low fluid can trigger warning codes

  4. 4. Brake Pedal

    Check the brake pedal for proper operation. Ensure it moves freely and returns to its original position

  5. 5. Examine Wiring and Connectors

  6. 6. Inspect the wiring harness and connectors related to the brake system, especially those connected to the brake pedal switch and the electronic brake control module

  7. 7. Look for signs of damage, corrosion, or loose connections

  8. 8. Test the Brake Switch

  9. 9. The brake switch is responsible for signaling when the brake pedal is applied. Test the switch for proper operation using a multimeter

  10. 10. If the switch is faulty, replace it

  11. 11. Check the Electronic Brake Control Module (EBCM)

  12. 12. Inspect the EBCM for any signs of damage or corrosion

  13. 13. If necessary, perform a reset or reprogramming of the module, following the manufacturer's guidelines

  14. 14. Inspect the ABS System

  15. 15. If the vehicle is equipped with an Anti-lock Braking System (ABS), check the ABS sensors and wiring for faults

  16. 16. Ensure that the ABS module is functioning correctly

  17. 17. Perform a Visual Inspection

  18. 18. Look for any obvious signs of wear or damage in the brake system components, including brake lines, calipers, and rotors

  19. 19. Check for Ground Issues

  20. 20. Ensure that all ground connections related to the brake system are secure and free of corrosion

  21. 21. Clear Codes and Test Drive

  22. 22. After performing the above checks and repairs, clear the trouble codes using the OBD-II scanner and take the vehicle for a test drive to see if the code reappears

  23. 23. Refer to the vehicle's service manual for specific diagnostic procedures and specifications related to the brake system and the C1960 code. 1

  24. 24. Seek Professional Help

  25. 25. If the issue persists after performing these steps, it may be necessary to consult a professional mechanic or technician who has experience with the specific vehicle make and model. By following these troubleshooting steps, you should be able to identify and resolve the issue related to the C1960 code